So, I'm fasting my Bettas for the first time today. I've only had my female for about a week, so this will probably be easier, but my male is used to being fed every single day. They seem to be doing fine, though. I would never have thought to fast them if I hadn't found this website. I had no idea how small their stomachs were. I'm not, however, fasting my Goldfish since they don't store food, and she's not constipated. I think the fasting thing is harder for me than for the fish. I see Aurora begging, and want to feed her. Sequin doesn't seem to care, though. lol